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首页> 外文期刊>The East African medical journal >Intrafamilial person-to-person spread of bacillary dysentery due to Shigella dysenteriae in southwestern Saudi Arabia.
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Intrafamilial person-to-person spread of bacillary dysentery due to Shigella dysenteriae in southwestern Saudi Arabia.

机译：沙特阿拉伯西南部痢疾志贺氏菌引起的家族性细菌性痢疾的人际传播。

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OBJECTIVE: To identify the factors that influence transmission of bacillary dysentry (BD) within families during a propagated outbreak of bacillary dysentery. DESIGN: A retrospective cohort study. SETTING: Eighteen neighbouring villages in rural Gizan, southwestern Saudi Arabia. SUBJECTS: Two hundred and thirty three cases of BD were identified among seventy nine families. RESULTS: Secondary cases of BD occurred in 57 of 79 families with a primary case of BD. The secondary attack rate per cent (AR%) within families ranged between 7.7% and 80%. Age of primary cases did not correlate with degree of secondary AR% in exposed families (p > 0.04; p > 0.05); however, within households, the age of the first secondary cases (median = two years) was usually less than the age of the primary case (median = six years). Children under five years of age constituted 43% of secondary cases. The median interval between successive cases within a house ranged from three and seven days. Two hundred and twenty cases (94.4%) gave history of close contact within another case of BD. Cases of BD were exposed to close relatives with BD (79.1%), neighbours (11.4%), and friends (9.5%). Risk factors influencing the spread of BD within families included two rooms or fewer per house (OR = 4.3, 9.5% CI 1.3-14.3), family size of five or more (p = 0.012, two-tailed Fisher's exact test), and presence of more than two persons per room (OR = 11.2, 95% CI 3.1-42.4). CONCLUSION: Person-to-person secondary transmission can amplify the spread of bacillary dysentery within households and neighbouring villages. Crowding was a risk factor that amplified transmission of BD within families.
机译：目的：确定在细菌性痢疾传播暴发期间影响家庭中细菌性痢疾（BD）传播的因素。设计：一项回顾性队列研究。地点：沙特阿拉伯西南部Gizan农村的18个邻近村庄。研究对象：在79个家庭中发现了233例BD。结果：继发性BD病例发生在79个家庭中的57个家庭中，其中以BD为主。家庭中的次要攻击率（AR％）在7.7％和80％之间。暴露家庭中原发病例的年龄与继发性AR％的程度无关（p> 0.04; p> 0.05）;但是，在家庭中，初次发病的年龄（中位数=两年）通常小于初次发病的年龄（中位数= 6岁）。五岁以下的儿童占第二位病例的43％。房屋内连续病例之间的中位间隔为三至七天。有220例（94.4％）的病史与另一例BD有关。 BD病例与BD的近亲（79.1％），邻居（11.4％）和朋友（9.5％）接触。影响BD在家庭中传播的风险因素包括每间房屋两间或以下（OR = 4.3，9.5％CI 1.3-14.3），五口或更多的家庭人数（p = 0.012，费舍尔二尾精确检验）和存在每间客房多于两个人（OR = 11.2，95％CI 3.1-42.4）。结论：人与人之间的二次传播可以扩大细菌性痢疾在家庭和附近村庄中的传播。拥挤是扩大家庭内部BD传播的危险因素。

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